photochemical smog 中文意思是什麼
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The term photochemical oxidants refers to the secondary pollutants formed in photochemical smog.
光化學氧化劑這一詞是指在光化學煙霧中生成的次生污染物。 -
The smog that we see is the product of a series of complex photochemical reactions among air pollutants from different sources under strong sunlight
不同污染源所排放到大氣中的污染物，在猛烈的陽光下會產生光化學作用，經一連串復雜的化學反應后，會形成我們看到的煙霧。 -
A both governments have commenced joint topical studies on acid rain, nitrogen dioxide, photochemical smog and particulates to identify the sources of problem that affect air quality in the pearl river delta region and to recommend effective mitigation measures
一粵港雙方已聯合展開有關酸雨二氧化氮光化煙霧和粒子污染及其防治的專題研究，以找出影響珠江三角洲地區空氣質素問題的根源，並建議有效的防治措施。 -
Both governments have commenced joint topical studies on acid rain, nitrogen dioxide, photochemical smog and particulates to identify the sources of problem that affect air quality in the pearl river delta region and to recommend effective mitigation measures
（一）粵港雙方已聯合展開有關酸雨、二氧化氮、光化煙霧和粒子污染及其防治的專題研究，以找出影響珠江三角洲地區空氣質素問題的根源，並建議有效的防治措施。 -
Photochemical smog irritates the eyes, nose and throat and damages plants
光化學煙霧會令眼睛鼻和喉嚨不適和使植物受到損害。 -
Photochemical smog also contains other compounds such as peroxyacyl nitrates and formaldehyde, which may cause eye irritation when the concentrations are high
此外，光合化學煙霧含有其他成分，如過氧?基硝酸鹽類和甲醛。 -
Photochemical smog irritates the eyes and damages plants
光化學煙霧會令眼睛不適和使植物受到損害。 -
Progress of the consultancy " study of nitrogen dioxide, photochemical smog and particulates and their control measures
「二氧化氮光化煙霧和粒子染與對策專題研究」的顧問研究的進度 -
Photochemical smog : smog produced by action of solar radiation, especially of ultraviolet radiation, on exhausts from vehicles and industry
太陽輻射，尤其是紫外線輻射對汽車和工業所排放的廢氣產生光化作用而形成的煙霧。 -
To address the problem of photochemical smog, we have to reduce the emissions of nox and voc in the whole of the prd region
（三）要減少光合化學煙霧現象，我們必須減少整個珠江三角洲區域的氮氧化物及揮發性有機化合物排放量。 -
As ozone is a major component of photochemical smog, ozone concentration is used as a scientific indicator of the level of photochemical smog
由於臭氧是光合化學煙霧的主要成分，所以在科學上是以臭氧濃度作為光合化學煙霧的指標。 -
When the targets are achieved, the ambient ozone concentrations in hong kong and in the whole of the prd region will fall significantly. the problem of photochemical smog will be alleviated and air quality will improve
上述目標達到后，本港以至整個珠江三角洲空氣中的臭氧濃度便會大大下降，光合化學煙霧問題會得以紓緩，空氣質素也會改善。 -
Situated further north on earth, europe has a lower average temperature than hong kong. since photochemical smog is not a significant problem over there, the need for reducing voc emissions in europe is less pressing than in california
（二）歐洲位於地球上較北的位置，平均氣溫較香港為低，光化煙霧的問題並不明顯，所以減少揮發性有機化合物的排放對歐洲來說也沒有美國加州那麼迫切。 -
When a temperature inversion is formed in the pearl river delta ( prd ) region, or when a weak northerly or northwesterly wind prevails, ambient air pollutants ( including nitrogen oxides ( nox ) and volatile organic compounds ( voc ) ) in the region will be trapped easily in the lower atmosphere and cannot be dispersed effectively. the above factors, if coupled with strong sunlight, will generate ozone under photochemical reaction between nox and voc and lead to the phenomenon of photochemical smog
當珠江三角洲區域一帶出現逆溫層，或者吹微弱北或西北風時，區域內空氣中的污染物（包括氮氧化物及揮發性有機化合物）很容易會被困在大氣的低層，不能有效消散；如再加上強烈的陽光，氮氧化物與揮發性有機化合物便會產生光合化學反應，形成臭氧及引致光合化學煙霧現象。
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